Is Claude Opus 4.8 (US) or gpt-oss-20b cheaper?

gpt-oss-20b is cheaper on output tokens ($0.30 vs $25.00 per 1M).

Which has the larger context window, Claude Opus 4.8 (US) or gpt-oss-20b?

Claude Opus 4.8 (US) has the larger context window (1M tokens).

Claude Opus 4.8 (US) vs gpt-oss-20b

gpt-oss-20b is cheaper on output tokens, while Claude Opus 4.8 (US) offers a larger context window. Choose Claude Opus 4.8 (US) or gpt-oss-20b based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Claude Opus 4.8 (US)	gpt-oss-20b
Provider	Amazon Bedrock	Amazon Bedrock
Input / 1M tokens	$5.00	$0.07
Output / 1M tokens	$25.00	$0.30
Context window	1M	128K
Parameters	—	21B
Open weights	No	No
Released	May 2026	Aug 2025

Claude Opus 4.8 (US) details →gpt-oss-20b details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.